I recently had trouble with the MBR/partition table on my laptop. I managed to rebuild the partition table using testdisk, and install GRUB to get it booting properly again (I'm using a dual-boot with Windows 7). However, I can no longer run gparted properly as I get the error Can't have a partition outside the disk!
.
fdisk -l
output looks like this:
Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x188f12a9
Device Boot Start End Blocks Id System
/dev/sda1 * 1 154 1228800 7 HPFS/NTFS/exFAT
/dev/sda2 154 13446 106775171 7 HPFS/NTFS/exFAT
/dev/sda3 13447 28745 122880000 83 Linux
/dev/sda4 28745 30402 13317664+ f W95 Ext'd (LBA)
/dev/sda5 28745 29127 3069944 82 Linux swap / Solaris
/dev/sda6 29127 30402 10240000 7 HPFS/NTFS/exFAT
So the disk has 30401 cylinders
, but sda6
ends at cylinder 30402
; presumably that's where the problem is.
When I run testdisk it has the 6th partition ending at cylinder 30401
, but writing it to the partition table does not make any difference.
Is there an easy way to fix this?
I've read elsewhere that I could fix this by manually editing the partition table, but I'd like really specific instructions as I don't really know much about this area!